I have find some time to determine the optimal setting for Sigma 8mm F3.5 Canon and Nikon on R10 7.5 deg.
Here is a table to show the settings.
https://fanotec-public.s3.amazonaws.com/R10%20NPP%20for%20Sigma%208mm%20F3.5%20Canon%20and %20Nikon.pdf

Nick

nick fan

07-18-2012, 11:00 PM

I would appreciate if users can test the validity by making a pano using my value(s).
I will make integrated rail plate for selected tilt angles. I will give 10 free copies for responders (one each) of each mount. $10 in value.

Nick

Bill Bailey

07-19-2012, 01:31 PM

R10 7.5 deg, Sigma 8mm F3.5, 4 shots around.
for Nikon, LRP-45X value 1.4
for Canon, LRP-40 value 0.85
Can any one confirm the Nikon setting?
Nick
I found 1.2 to be closer with Sigma 8mm Nikon on LRP45x
When finding NPP I found also you get different readings at different locations of lens so I used center barrel of lens to get the 1.2
This isn't pixel by pixel comparison in photoshop.

Bill

nick fan

07-19-2012, 08:36 PM

I found 1.2 to be closer with Sigma 8mm Nikon on LRP45x
When finding NPP I found also you get different readings at different locations of lens so I used center barrel of lens to get the 1.2
This isn't pixel by pixel comparison in photoshop.

Bill

That is the problem with NPP settings. it depends on the location. I concentrate on the horizon.